EP1292533A1 - Process for the production of hydrogen peroxide and composition for use therein - Google Patents
Process for the production of hydrogen peroxide and composition for use thereinInfo
- Publication number
- EP1292533A1 EP1292533A1 EP01941352A EP01941352A EP1292533A1 EP 1292533 A1 EP1292533 A1 EP 1292533A1 EP 01941352 A EP01941352 A EP 01941352A EP 01941352 A EP01941352 A EP 01941352A EP 1292533 A1 EP1292533 A1 EP 1292533A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- anthraquinones
- working solution
- quinone
- solvent
- isodurene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/01—Hydrogen peroxide
- C01B15/022—Preparation from organic compounds
- C01B15/023—Preparation from organic compounds by the alkyl-anthraquinone process
Definitions
- the present invention relates to a process for production of hydrogen peroxide according to the anthraquinone process, wherein the working solution comprises a certain mixture of solvents.
- the invention also concerns a composition comprising such a mixture of solvents that is useful as a working solution at production of hydrogen peroxide.
- the most common process for production of hydrogen peroxide is the anthraquinone process.
- quinones selected from optionally substituted anthraquinones and/or tetrahydro anthraquinones dissolved in a suitable organic solvent mixture, a so called working solution, are hydrogenated to form the corresponding hydroquinones.
- the hydroquinones are then oxidised back to quinones with oxygen (usually air) with simultaneous formation of hydrogen peroxide, which then can be extracted with water while the quinones are returned with the working solution to the hydrogenation step.
- the solvent mixture in the working solution normally comprises one or more quinone solvents and one or more hydroquinone solvents.
- the production capacity in a plant is limited by the amount of quinones available for hydrogenation in the working solution or the amount of hydroquinones that can be formed without precipitation thereof. This problem has been found to be of particular importance when the amount of tetrahydro anthraquinones in the working solution is high.
- the invention concerns a process for production of hydrogen peroxide according to the anthraquinone process including alternate hydrogenation and oxidation of one or more quinones selected from anthraquinones and/or tetrahydro anthraquinones in a working solution comprising at least one quinone solvent and at least one hydroquinone solvent, wherein said at least one quinone solvent comprises isodurene (1,2,3,5-tetramethylbenzene) in an amount from 15 to 100 wt%, preferably from about 20 to about 80 wt%, most preferably from about 25 to about 70 wt%.
- the at least one quinone solvent referred to above substantially consists of one or more essentially non-polar organic solvents, preferably hydrocarbons, while the at least one hydroquinone solvent referred to above most preferably substantially consists of one or more polar organic solvents, suitably essentially non-soluble in water and preferably selected from alcohols, ureas, amides, caprolactams, esters, phosphorus containing substances and pyrrolidones.
- the at least one quinone solvent suitably comprises durene (1,2,4,5-tetramethylbenzene), wherein the total amount of isodurene and durene suitably constitutes from about 30 to about 100 wt%, preferably from about 35 to about 80 wt% of the total amount of quinone solvents.
- the content thereof should not be too high, preferably not exceeding about 25 wt%, most preferably not exceeding about 20 wt% of the total amount of quinone solvents.
- the weight ratio isodurene to durene in the working solution is preferably from about 1.5:1 to about 5:1, most preferably from about 2:1 to about 4:1.
- the at least one quinone solvent may also comprise other suitably essentially non-polar hydrocarbons, preferably selected from one or more aromatic, aliphatic or naphthenic hydrocarbons, of which aromatic hydrocarbons are most preferred.
- Particularly suitable quinone solvents include benzene, alkylated or polyalkylated benzenes such as tert- butylbenzene or trimethyl benzene, alkylated toluene or naphthalene such as tert- butyltoluene or methylnaphthaiene.
- the preferred total content of quinone solvents and consequently also the content of isodurene used in the entire working solution depends on which hydroquinone solvent(s) that are used.
- the suitable content of quinone solvents is from about 25 to about 65 wt%, preferably from about 40 to about 60 wt% of the entire working solution.
- the weight ratio quinone solvents to hydroquinone solvents suitably is from about 0.6 to about 4, preferably from about 1.5 to about 3.
- the suitable content of isodurene normally is from about 8 to about 52 wt%, preferably from about 11 to about 42 wt% of the entire working solution.
- the working solution comprises at least one and preferably at least two hydroquinone solvents, suitably selected from polar organic solvents, which, however, preferably should be essentially non-soluble in water.
- Suitable hydroquinone solvents may be selected from alcohols, ureas, amides, caprolactams, esters, phosphorus containing substances and pyrrolidones, and include alkyl phosphates (e.g. trioctyl phosphate), alkyl phosphonates, alkylcyclohexanol esters, N,N-dialkyl carbonamides, tetraalkyl ureas (e.g.
- tetrabutyl urea N-alkyl-2-pyrrolidones and high boiling alcohols, preferably with 8-9 carbon atoms (e.g. di-isobutyl carbinol).
- Preferred hydroquinone solvents are selected from alkyl phosphates, tetraalkyl ureas, cyclic urea derivatives and alkyl-substituted caprolactams.
- hydroquinone solvents include alkyl-substituted caprolactams such as octyl caprolactam and cyclic urea derivatives such as N,N'-dialkyl-substituted alkylenurea.
- alkyl-substituted caprolactams such as octyl caprolactam
- cyclic urea derivatives such as N,N'-dialkyl-substituted alkylenurea.
- Other preferred hydroquinone solvents include di-isobutyl carbinol and tetrabutyl urea, which are advantageous in the sense that they have low density.
- the content of hydroquinone solvents in the working solution is preferably from about 15 to about 48 wt%, most preferably from about 18 to about 35 wt%.
- the anthraquinones and tetrahydro anthraquinones in the working solution to be hydrogenated are preferably alkyl substituted, most preferably with only one alkyl group, suitably at the 2-position.
- Preferred alkyl substituents include amyl such as 2-tert-amyl or 2-iso-sec-amyl, ethyl, tert-butyl and 2-hexenyl, and it is particularly preferred that at least ethyl substituted anthraquinones and/or tetrahydro anthraquinones are included.
- the working solution to be hydrogenated include a mixture of different alkyl substituted anthraquinones and tetrahydro anthraquinones, more preferably a mixture of ethyl and at least one . other alkyl substituted, most preferably amyl substituted anthraquinone and/or tetrahydro anthraquinone.
- a mixture of different alkyl substituted anthraquinones and tetrahydro anthraquinones more preferably a mixture of ethyl and at least one .
- other alkyl substituted most preferably amyl substituted anthraquinone and/or tetrahydro anthraquinone.
- the anthraquinones and the tetrahydro anthraquinones are substituted with one amyl group. It has been found favourable to operate at high amounts of tetrahydro anthraquinones compared to anthraquinones, as it then is possible to achieve high degree of hydrogenation and low losses of active quinones to degradation products.
- the molar ratio of tetrahydro anthraquinones to anthraquinones in the working solution to be hydrogenated exceeds 1:1 and is preferably from about 2:1 to about 50:1, most preferably from about 3:1 to about 20:1. In some cases it may be appropriate to operate at a molar ratio only up to about 9:1, but it is also possible to use working solutions almost free from anthraquinones.
- the molar ratio of tetrahydro anthraquinones to alkyl anthraquinones in a mature working solution is suitably in the same magnitude for the anthraquinones substituted with different groups.
- the molar ratio for each group differ preferably less than with a factor of about 2.5, most preferably less than with a factor of about 1.7.
- the tetrahydro anthraquinones are normally mainly made up of ⁇ -tetrahydro anthraquinones, but also some ⁇ -tetrahydro anthraquinones may be present.
- many secondary reactions take place.
- the anthrahydroquinones can react further to tetrahydro anthrahydroquinones, which in the oxidation step is converted to tetrahydro anthraquinones, the content of which thus will increase in the working solution.
- the initial working solution may contain no or only small amounts of tetrahydro anthraquinones, as they will form automatically during the course of operation.
- the high amounts of isodurene in the working solution renders it possible to dissolve high amounts of ethyl substituted tetrahydro anthraquinone, which has lower density than, for example, the highly soluble amyl substituted tetrahydro anthraquinone. It is then possible to combine high concentration of quinones available for hydrogenation in the working solution with low density, thus increasing the production capacity of hydrogen peroxide per volume working solution.
- the total amount of anthraquinones and tetrahydro anthraquinones in the working solution to be hydrogenated is preferably from about 15 to about 28 wt%, most preferably from about 17 to about 25 wt%, while the density , measured at 20°C, preferably is from about 910 to about 980 kg/m 3 , most preferably from about 930 to about 970 kg/m 3 .
- the hydrogenation step is normally performed by contacting the working solution with hydrogen gas in the presence of a catalyst at a temperature from about 0 to about 100°C, preferably from about 40 to about 75°C, and at an absolute pressure from about 100 to about 1500 kPa, preferably from about 200 to about 600 kPa.
- the degree of hydrogenation is suitably from about 350 to about 800, preferably from about 400 to about 650.
- the active catalyst may, for example, be a metal selected from any of nickel, palladium, platinum, rhodium, ruthenium, gold, silver, or mixtures thereof.
- Preferred metals are palladium, platinum and gold, of which palladium or mixtures comprising at least 50 wt% palladium are particularly preferred.
- the active catalyst may be in free form, e.g. palladium black suspended in the working solution, or be deposited on a solid support such as particles used in the form of a slurry or a fixed bed.
- it is particularly preferred to use a catalyst in the form of an active metal on a monolithic support for example, as described in US patents 4552748 and 5063043.
- Preferred support materials are selected from silica or aluminium oxide.
- At least a portion of the working solution is preferably regenerated in one or several steps to remove water, to keep the desired ratio of tetrahydro anthraquinones to anthraquinones, to convert some undesired by-products from the hydrogenation or the oxidation steps back to active components, and to remove other undesired by-products.
- the regeneration may include filtration, evaporation of water, and treatment with a porous adsorbent and catalyst based on aluminium oxide.
- the invention further concerns a composition useful as a working solution at production of hydrogen peroxide with the anthraquinone process.
- the composition comprises one or more anthraquinones and/or one or more tetrahydro anthraquinones dissolved in at least one quinone solvent, and at least one hydroquinone solvent, wherein said at least one quinone solvent comprises isodurene in an amount from 15 to 100 wt%, preferably from about 20 to about 80 wt%, most preferably from about 25 to about 70 wt%.
- the above description of the process is referred to.
- Example 1 The solubility of ⁇ -tetrahydro ethyl anthraquinone was measured in two different pure quinone solvents:
- Example 2 Two different mature working solutions, A (comparative) and B (the invention), were tested in an anthraquinone process, the solutions thus also containing normal degradation products. Both solutions comprised tetrabutyl urea as hydroquinone solvent and 2-ethyl and 2-amyl substituted anthraquinones and tetrahydro anthraquinones (the molar ratio 2-ethyl to 2-amyl exceeded 1:1 and was maintained constant). The molar ratio tetrahydro anthraquinones to anthraquinones exceeded 3:1.
- Solution A the quinone solvent was made up of ShellsolTM AB, a regular mixture of aromatic hydrocarbon with mainly C 10 and C 9 alkyl-benzene (about 85%), while in Solution B the quinone solvent instead was made up of 40 wt% ShellsolTM AB mixed with 60 wt% of isodurene (Technical grade comprising about 69% isodurene, about 22% durene and about 9 wt% other C 10 aromatic hydrocarbons).
- ShellsolTM AB a regular mixture of aromatic hydrocarbon with mainly C 10 and C 9 alkyl-benzene (about 85%)
- Solution B the quinone solvent instead was made up of 40 wt% ShellsolTM AB mixed with 60 wt% of isodurene (Technical grade comprising about 69% isodurene, about 22% durene and about 9 wt% other C 10 aromatic hydrocarbons).
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01941352A EP1292533B1 (en) | 2000-06-19 | 2001-05-28 | Process for the production of hydrogen peroxide and composition for use therein |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US21263300P | 2000-06-19 | 2000-06-19 | |
EP00850109 | 2000-06-19 | ||
EP00850109 | 2000-06-19 | ||
US212633P | 2000-06-19 | ||
PCT/SE2001/001192 WO2001098204A1 (en) | 2000-06-19 | 2001-05-28 | Process for the production of hydrogen peroxide and composition for use therein |
EP01941352A EP1292533B1 (en) | 2000-06-19 | 2001-05-28 | Process for the production of hydrogen peroxide and composition for use therein |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1292533A1 true EP1292533A1 (en) | 2003-03-19 |
EP1292533B1 EP1292533B1 (en) | 2009-12-30 |
Family
ID=56290145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01941352A Expired - Lifetime EP1292533B1 (en) | 2000-06-19 | 2001-05-28 | Process for the production of hydrogen peroxide and composition for use therein |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP1292533B1 (en) |
JP (1) | JP3992244B2 (en) |
KR (1) | KR100498786B1 (en) |
CN (1) | CN1233547C (en) |
AT (1) | ATE453602T1 (en) |
AU (1) | AU2001274712A1 (en) |
BR (1) | BR0111857B1 (en) |
CA (1) | CA2412956C (en) |
CZ (1) | CZ299805B6 (en) |
ES (1) | ES2338298T3 (en) |
PL (1) | PL200150B1 (en) |
PT (1) | PT1292533E (en) |
RU (1) | RU2235680C2 (en) |
WO (1) | WO2001098204A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI1013683A2 (en) * | 2009-03-27 | 2016-04-26 | Solvay | process for the production of hydrogen peroxide |
CN107539957B (en) * | 2016-06-23 | 2020-10-27 | 中国石油化工股份有限公司 | Solvent system for producing hydrogen peroxide by anthraquinone process, variable working solution and application |
SE1651754A1 (en) * | 2016-12-29 | 2018-03-27 | Eb Nuberg Ab | Aromatic solvent for hydrogen peroxide production |
FR3131292A1 (en) | 2021-12-23 | 2023-06-30 | Arkema France | Hydrogen peroxide production process |
FR3141158A1 (en) | 2022-10-25 | 2024-04-26 | Arkema France | Hydrogen peroxide production process |
CN115924853B (en) * | 2022-11-15 | 2024-01-05 | 黎明化工研究设计院有限责任公司 | High-yield working liquid system for producing hydrogen peroxide by anthraquinone process |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB834154A (en) * | 1957-02-25 | 1960-05-04 | Columbia Southern Chem Corp | Improvements in the preparation of hydrogen peroxide |
DE1914739A1 (en) * | 1969-03-22 | 1970-10-01 | Degussa | Process for the production of hydrogen peroxide |
BE756015A (en) * | 1969-09-10 | 1971-02-15 | Degussa | PROCESS FOR THE PREPARATION OF HYDROGEN PEROXIDE (E) |
BE756013A (en) * | 1969-09-10 | 1971-02-15 | Degussa | PROCESS FOR THE EXTRACTION OF HYDROGEN PEROXIDE FROM THE WORKING SOLUTIONS OF THE ANTHRAQUINONE PROCESS |
DE2532819C3 (en) * | 1975-07-23 | 1978-10-05 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Process for the production of hydrogen peroxide |
-
2001
- 2001-05-28 CA CA002412956A patent/CA2412956C/en not_active Expired - Fee Related
- 2001-05-28 BR BRPI0111857-9A patent/BR0111857B1/en not_active IP Right Cessation
- 2001-05-28 RU RU2003101340/15A patent/RU2235680C2/en not_active IP Right Cessation
- 2001-05-28 AU AU2001274712A patent/AU2001274712A1/en not_active Abandoned
- 2001-05-28 KR KR10-2002-7016807A patent/KR100498786B1/en active IP Right Grant
- 2001-05-28 EP EP01941352A patent/EP1292533B1/en not_active Expired - Lifetime
- 2001-05-28 PT PT01941352T patent/PT1292533E/en unknown
- 2001-05-28 PL PL358135A patent/PL200150B1/en unknown
- 2001-05-28 AT AT01941352T patent/ATE453602T1/en active
- 2001-05-28 ES ES01941352T patent/ES2338298T3/en not_active Expired - Lifetime
- 2001-05-28 WO PCT/SE2001/001192 patent/WO2001098204A1/en active IP Right Grant
- 2001-05-28 JP JP2002503650A patent/JP3992244B2/en not_active Expired - Fee Related
- 2001-05-28 CN CNB018114148A patent/CN1233547C/en not_active Expired - Fee Related
- 2001-05-28 CZ CZ20024111A patent/CZ299805B6/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0198204A1 * |
Also Published As
Publication number | Publication date |
---|---|
PT1292533E (en) | 2010-03-18 |
RU2235680C2 (en) | 2004-09-10 |
ES2338298T3 (en) | 2010-05-06 |
CZ299805B6 (en) | 2008-12-03 |
BR0111857B1 (en) | 2010-11-16 |
PL358135A1 (en) | 2004-08-09 |
CA2412956A1 (en) | 2001-12-27 |
JP3992244B2 (en) | 2007-10-17 |
JP2003535801A (en) | 2003-12-02 |
ATE453602T1 (en) | 2010-01-15 |
CN1437561A (en) | 2003-08-20 |
CN1233547C (en) | 2005-12-28 |
AU2001274712A1 (en) | 2002-01-02 |
PL200150B1 (en) | 2008-12-31 |
WO2001098204A1 (en) | 2001-12-27 |
EP1292533B1 (en) | 2009-12-30 |
CA2412956C (en) | 2008-11-25 |
KR100498786B1 (en) | 2005-07-01 |
KR20030047896A (en) | 2003-06-18 |
BR0111857A (en) | 2003-05-13 |
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